Anti-swing ton bag lifting and moving equipment

Abstract

The utility model discloses anti-swing type ton bag lifting and moving equipment, which relates to the technical field of ton bag loading and comprises a crane carriage and a transfer frame positioned below the crane carriage, a vertical telescopic rod is connected between the crane carriage and the transfer frame; four movable pulleys are mounted on the upper side of the transfer frame, and the crane carriage is matched with the four movable pulleys through steel wire ropes to drive the transfer frame to ascend and descend; a sliding assembly rotating horizontally is arranged on the lower side of the transfer frame and connected with two grab hook assemblies for grabbing ton bags. Four lifting point lifting structures are formed by the four movable pulleys, so that the swing of the ton bag can be effectively reduced; rigid anti-swing is achieved through the telescopic rod, and the stability of the ton bag in the lifting and moving process is further improved; the ton bags are grabbed through the grabbing hook assembly, the grabbing hook assembly can rotate to the state suitable for grabbing the ton bags through rotation of the sliding assembly, accurate grabbing of the ton bags is facilitated, and the truck loading efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bulk bag loading, and particularly relates to an anti-sway type bulk bag lifting and moving device. Background Art

[0002] In the process of modern logistics transportation, bulk bags, as a large-capacity packaging container, are widely used in the loading and transportation of various bulk materials. Traditional bulk bag loading depends on manual operation. Workers need to manually connect the hook of a crane or forklift with the handle of the bulk bag and then carry out hoisting and loading. This method not only has a large labor intensity and low efficiency, but also has certain safety risks. Moreover, for example, a bulk bag for packaging alkali salt weighs about one ton, and during the process of lifting and moving by a crane or forklift, the inertial sway is more harmful. Therefore, there is an urgent need for an anti-sway type bulk bag lifting and moving device. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the above-mentioned problems in the prior art, and provide an anti-sway type bulk bag lifting and moving device.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An anti-sway type bulk bag lifting and moving device includes a hoisting trolley and a transfer rack located below the hoisting trolley; a vertical telescopic rod is connected between the hoisting trolley and the transfer rack; four movable pulleys are installed on the upper side of the transfer rack, and the hoisting trolley drives the transfer rack to lift through the cooperation of a steel wire rope and the four movable pulleys; a horizontally rotating sliding component is arranged on the lower side of the transfer rack, and the sliding component is connected with two hook components for grasping the bulk bag.

[0006] Further, a double drum is installed on the hoisting trolley, and steel wire ropes are wound around the outer sides of both sections of the double drum; both ends of the steel wire rope extend out from both sides of the double drum, bypass the movable pulley downward, and are connected with the hoisting trolley upward.

[0007] Further, a slewing bearing is connected between the transfer rack and the sliding component.

[0008] Further, the sliding component includes a column, a first crank is connected to the upper end of the column, and a servo electric cylinder for driving the sliding component to rotate is hinged between the end of the first crank and the lower side of the transfer rack.

[0009] Further, the sliding component includes a box body, an input shaft is installed in the box body, and lead screws are connected to both ends of the input shaft; the lead screws at both ends of the input shaft are respectively connected with the two hook components through threads, and when the input shaft rotates, the two hook components move away from or approach each other synchronously.

[0010] Further, the sliding component includes a guide rail, and the upper end of the hook component is connected with a sliding seat sliding along the guide rail.

[0011] Further, the grapple assembly includes a locking rod rotatably installed and a lifting hook, and meshing gears are connected to the rotating shafts of the locking rod and the lifting hook; a notch for cooperating with the lifting hook is provided at the lower end of the locking rod.

[0012] Further, the grapple assembly includes a power member, and the power member drives the rotating shaft of the lifting hook to rotate through a crank-rocker mechanism.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model forms a four-point hoisting structure through four movable pulleys, which can effectively reduce the sway of the ton bag; realizes rigid anti-sway through the telescopic rod, further improving the stability during the lifting and movement of the ton bag; grabs the ton bag through the grapple assembly, and enables the grapple assembly to rotate to a state suitable for grabbing the ton bag through the rotation of the sliding assembly, which helps to accurately grab the ton bag and improve the loading efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic side view of the working state of the first side view of the present utility model.

[0016] Figure 2 It is a schematic side view of the second side view of the present utility model.

[0017] Figure 3 It is a schematic internal view of the connection structure of the sliding assembly of the present utility model.

[0018] Figure 4 It is a schematic top view of the connection structure of the sliding assembly of the present utility model.

[0019] Figure 5 It is a schematic internal view of the sliding assembly of the present utility model.

[0020] Figure 6 It is a schematic external view of the grapple assembly of the present utility model.

[0021] Figure 7 It is a schematic internal view of the grapple assembly of the present utility model.

[0022] In the figure: 1, hoisting trolley; 2, transfer rack; 3, telescopic rod; 4, double drum; 5, movable pulley; 6, steel wire rope; 7, sliding assembly; 8, grapple assembly; 9, slewing bearing; 10, servo electric cylinder; 11, sliding seat;

[0023] 701, box body; 702, column; 703, first crank; 704, input shaft; 705, first servo motor; 706, belt drive mechanism; 707, lead screw; 708, guide rail;

[0024] 801. Housing; 802. Locking rod; 803. Hook; 804. Gear; 805. Second servo motor; 806. Reducer; 807. Second crank; 808. Rocker; 809. Connecting rod; 810. Limit bolt. Detailed implementation

[0025] The present invention will now be further described in detail with reference to the accompanying drawings. The drawings illustrate the basic structure of the present invention schematically, and therefore only show the components related to the present invention.

[0026] Specific embodiment of the anti-sway type ton bag lifting and moving device provided by the present invention:

[0027] Please refer to Figure 1-7 , an anti-sway type ton bag lifting and moving device, including a hoisting trolley 1 and a transfer rack 2 located below the hoisting trolley 1; the hoisting trolley 1 in this embodiment is a part of a bridge crane. Specifically, a steel structure frame that can accommodate trucks and conveyors is built inside, and a large car track is provided on the upper part of the steel structure frame. The hoisting trolley 1 is arranged on the main beam of the bridge crane and reciprocates along the main beam track. The two ends of the main beam are connected to end beams that reciprocate along the large car track on the steel structure frame.

[0028] A vertical telescopic rod 3 is connected between the hoisting trolley 1 and the transfer rack 2. The telescopic rod 3 adopts a multi-stage telescopic structure. The telescopic rod 3 serves as a rigid guide for the lifting of the transfer rack 2. A ton bag is loaded on the lower side of the transfer rack 2, and the telescopic rod 3 provides a rigid anti-sway effect and ensures the stability during the lifting and translation of the ton bag.

[0029] A winch is installed on the hoisting trolley 1. The winch includes a double drum 4. In this embodiment, the double drum 4 is two axially fixedly connected drums, and the motor of the winch drives the two drums of the double drum 4 to rotate simultaneously.

[0030] Steel wire ropes 6 are wound around both ends of the double drum 4, that is, on the outer sides of the two drums; movable pulleys 5 are installed on the upper sides of the four corners of the transfer rack 2, a total of four movable pulleys 5.

[0031] The hoisting trolley 1 drives the transfer rack 2 to lift through the cooperation of the steel wire ropes 6 and the four movable pulleys 5, forming a lifting structure with four hanging points. The four hanging points further improve the stability during the lifting and movement of the transfer rack 2 and reduce the swaying phenomenon during the movement of the ton bag during loading.

[0032] Both ends of the steel wire rope 6 extend out from both sides of the double drum 4, bypass the movable pulley 5 downward, and are connected to the hoisting trolley 1 upward. Two sections of steel wire rope 6 extend downward from each drum, and a total of four sections of steel wire rope 6 extend downward from the two drums and cooperate with the four movable pulleys 5 respectively. Four fixed pulleys are arranged on the hoisting trolley 1, on both sides of the double drum 4 respectively, to ensure the stable winding and releasing of the steel wire rope 6.

[0033] In some other embodiments, when operating the lifting trolley 1, the lifting trolley 1 carries the ton bag and translates it via the transfer frame 2 until it is about to reach the position. During the braking process of the lifting trolley 1, after the traveling motor of the lifting trolley 1 stops rotating forward, the traveling motor of the lifting trolley 1 can be reversed by a small angle to provide an instantaneous reverse moving acceleration, offsetting part of the moving inertia of the ton bag, promoting braking and facilitating anti-swaying.

[0034] A sliding component 7 that rotates horizontally is provided on the lower side of the transfer frame 2. A slewing bearing 9 is connected between the transfer frame 2 and the sliding component 7. The slewing bearing 9 enables the sliding component 7 to rotate smoothly horizontally under the transfer frame 2.

[0035] The sliding component 7 includes a box body 701. A column 702 is connected to the upper side of the box body 701. A first crank 703 is connected to the upper end of the column 702. A servo electric cylinder 10 for driving the sliding component 7 to rotate is hinged between the end of the first crank 703 and the lower side of the transfer frame 2. As Figure 3 described, a cylinder body is provided on the upper side of the middle part of the box body 701. The upper end of the cylinder body is connected to the slewing bearing 9. The column 702 is located inside the cylinder body, and a through hole for the servo electric cylinder 10 to pass through is provided on the side wall of the cylinder body.

[0036] When the telescopic end of the servo electric cylinder 10 expands and contracts, the column 702 and the entire sliding component 7 are rotated horizontally at a certain angle through the first crank 703.

[0037] The sliding component 7 is connected to two hook components 8 for grasping ton bags. The horizontal rotation of the sliding component 7 can change the state orientation of the hook components 8, so that the hook components 8 can correspond to the lifting lugs of the ton bags, which is convenient for the hook components 8 to automatically grasp the ton bags and improves the ton bag grasping and loading efficiency.

[0038] An input shaft 704 is installed in the middle of the box body 701. Both ends of the input shaft 704 are connected with lead screws 707 through couplings; the input shaft 704 and the lead screws 707 are both rotatably installed in the box body 701, and the center lines of the lead screws 707 and the input shaft 704 are on the same straight line. A first servo motor 705 is installed on one side of the box body 701. A belt transmission mechanism 706 is connected between the first servo motor 705 and the middle part of the input shaft 704. The forward and reverse rotations of the first servo motor 705 respectively make the input shaft 704 rotate forward and reverse. The transmission belt of the belt transmission mechanism 706 is preferably a synchronous belt.

[0039] The lead screws 707 at both ends of the input shaft 704 are respectively connected to the two hook components 8 through threads. The forward and reverse rotations of the input shaft 704 respectively make the two hook components 8 move away from and approach each other synchronously, that is, the sliding component 7 can make the hook components 8 slide and change the distance between the two hook components 8. By adjusting the distance between the two hook components 8, it is easier for the hook components 8 to correspond to the lifting lugs of the two ton bags at the same time, which is convenient for the hook components 8 to grasp the ton bags.

[0040] As Figure 5 shown, the sliding assembly 7 includes a guide rail 708 disposed within a box body 701, and the lower side of the box body 701 has an opening. The upper end of the hook assembly 8 is connected to a sliding seat 11 that slides along the guide rail 708. A total of four guide rails 708 are provided, and every two of them correspond to one lead screw 707 and are located on both sides of the lead screw 707. The guide rail 708 is parallel to the lead screw 707, and correspondingly, the number of sliding seats 11 is four in total. The guide rail 708 enables the hook assembly 8 to slide stably, thereby enabling the two hook assemblies 8 to smoothly change the distance. The guide rail 708 also supports the ton bag through the sliding seat 11.

[0041] The hook assembly 8 includes a rotatably mounted locking rod 802 and a hook 803. The rotating shafts of the locking rod 802 and the hook 803 are connected with meshing gears 804. The number of gears 804 is two, and the two gears 804 are respectively connected to the rotating shafts of the locking rod 802 and the hook 803 and mesh with each other. Therefore, when either the locking rod 802 or the hook 803 rotates, the other rotates in the opposite direction, so that the locking rod 802 and the hook 803 can open and close, thereby realizing the grasping and releasing of the ton bag. The locking rod 802 is located on the opening side of the hook 803, and a notch for cooperating with the hook 803 is provided at the lower end of the locking rod 802. When closed, the lower end of the hook 803 passes through this notch.

[0042] The rotating shaft of the locking rod 802 is located at the upper end of the locking rod 802; the rotating shaft of the hook 803 is located at the upper end of the hook 803. A limit bolt 810 is threaded through the upper part of the locking rod 802. When the hook assembly 8 is closed, the end of the limit bolt 810 abuts against the upper part of the hook 803, playing a role in limiting the closing angle in the closed state.

[0043] The hook assembly 8 includes a housing 801 and a power member. The housing 801 includes upper and lower parts. The lower part of the housing 801 supports the locking rod 802 and the hook 803, and the upper end of the upper part of the housing 801 cooperates with the lead screw 707. The power member includes a second servo motor 805 and a reducer 806 driven by the second servo motor 805. The reducer 806 is installed on one side of the housing 801.

[0044] The power member drives the rotating shaft of the hook 803 to rotate through a crank-rocker mechanism. The crank-rocker mechanism includes a second crank 807, a rocker 808, and a connecting rod 809. The second crank 807 is connected to the output shaft of the reducer 806, the rocker 808 is connected to the rotating shaft of the hook 803, and the connecting rod 809 is hinged between the second crank 807 and the rocker 808. In this way, the power member can swing the hook 803 through the crank-rocker mechanism, and at the same time, the locking rod 802 swings in the opposite direction through the meshing gears 804, thereby making the closing and separating actions, and then realizing the grasping and releasing of the ton bag.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-swaying type ton bag lifting and moving device, comprising a hoisting trolley (1) and a transfer rack (2) located below the hoisting trolley (1); characterized in that, A vertical telescopic rod (3) is connected between the lifting trolley (1) and the transfer frame (2); four movable pulleys (5) are installed on the upper side of the transfer frame (2), and the lifting trolley (1) drives the transfer frame (2) to lift through the cooperation of a steel wire rope (6) and the four movable pulleys (5); a horizontally rotating sliding component (7) is provided on the lower side of the transfer frame (2), and the sliding component (7) is connected to two hook components (8) for grasping ton bags.

2. The anti-sway type ton bag lifting and moving device according to claim 1, characterized in that, A double drum (4) is installed on the lifting trolley (1), and the steel wire rope (6) is wound around the outer sides of both sections of the double drum (4); both ends of the steel wire rope (6) extend out from both sides of the double drum (4), bypass downward around the movable pulley (5), and are connected upward to the lifting trolley (1).

3. The anti-sway type ton bag lifting and moving device according to claim 1, wherein, A slewing bearing (9) is connected between the transfer frame (2) and the sliding component (7).

4. The anti-sway type ton bag lifting and moving device according to claim 3, characterized in that, The sliding component (7) includes a column (702), a first crank (703) is connected to the upper end of the column (702), and a servo electric cylinder (10) for driving the sliding component (7) to rotate is hinged between the end of the first crank (703) and the lower side of the transfer frame (2).

5. The anti-swaying ton bag lifting and moving device according to claim 1, characterized in that, The sliding component (7) includes a box body (701), an input shaft (704) is installed in the box body (701), and lead screws (707) are connected to both ends of the input shaft (704); the lead screws (707) at both ends of the input shaft (704) are respectively connected to the two hook components (8) by threads, and the rotation of the input shaft (704) makes the two hook components (8) move away from or close to each other synchronously.

6. The anti-sway type ton bag lifting and moving device according to claim 5, characterized in that, The sliding component (7) includes a guide rail (708), and a sliding seat (11) that slides along the guide rail (708) is connected to the upper end of the hook component (8).

7. The anti-swaying ton bag lifting and moving device according to claim 1, characterized in that, The hook component (8) includes a locking rod (802) rotatably installed and a hook (803), and gears (804) in mesh are connected to the rotation shafts of the locking rod (802) and the hook (803); a notch for cooperating with the hook (803) is provided at the lower end of the locking rod (802).

8. The anti-sway type ton bag lifting and moving device according to claim 7, characterized in that, The hook component (8) includes a power component, and the power component drives the rotation shaft of the hook (803) to rotate through a crank-rocker mechanism.

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